@metamask/eslint-config-nodejs

Shareable MetaMask ESLint config for Node.js.

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@metamask/eslint-config-nodejs
MetaMask's Node.js ESLint configuration.

Usage

yarn add --dev \
    @metamask/eslint-config@^9.0.0 \
    @metamask/eslint-config-nodejs@^9.0.0 \
    eslint@^7.23.0 \
    eslint-config-prettier@^8.1.0 \
    eslint-plugin-import@^2.22.1 \
    eslint-plugin-jsdoc@^39.2.9 \
    eslint-plugin-node@^11.1.0 \
    eslint-plugin-prettier@^3.3.1 \
    prettier@^2.2.1

The order in which you extend ESLint rules matters. The @metamask/* eslint configs should be added to the extends array last, with @metamask/eslint-config first, and @metamask/eslint-config-* in any order thereafter.
module.exports = {
  extends: [
    // These should be added last unless you know what you're doing.
    '@metamask/eslint-config',
    '@metamask/eslint-config-nodejs',
  ],
};

To lint the .eslintrc.js file itself, you will need to add this config in addition to the base config.